--- version: rssac002v3 service: a.root-servers.net start-period: '2018-12-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4309310173 dns-udp-queries-received-ipv6: 714215012 dns-tcp-queries-received-ipv4: 130123507 dns-tcp-queries-received-ipv6: 32802747 dns-udp-responses-sent-ipv4: 4207875081 dns-udp-responses-sent-ipv6: 713584082 dns-tcp-responses-sent-ipv4: 126353708 dns-tcp-responses-sent-ipv6: 32996819